I think Mega should make a Versus Mystery Pack Series. Like the ODST v Brute set.
I know current mystery packs are that, but i think to make this unique, each pack would have one UNSC and one Covenant figure.
I know it's dumb, but i hope Mega would consider.
Disclaimer: I do not mean The Old Red vs Blue sets. I mean any one UNSC figure and any one Covenant figure in a Pack.